funny things about dating - Bind updating outside zone
While the base system package can be configured to provide resolution services beyond the local machine, it is recommended that such requirements be addressed by installing ;; Number of trusted keys: 1 ;; Chasing:
// This is named after the first bytes of the IP address, in reverse // order, with ".
options ; // If you enable a local name server, do not forget to enter 127.0.0.1 // first in your /etc/so this server will be queried. Name servers that are serving a lot of clients will benefit more from this approach than individual hosts. To use this mechanism, uncomment the entries below, and comment the hint zone above. NET are available for AXFR from these servers on IPv4 and IPv6: dns.icann.org, dns.*/ /* zone "." ; zone "arpa" ; */ /* Serving the following zones locally will prevent any queries for these zones leaving your network and going to the root name servers. INT is Deprecated (RFC 4159) zone "ip6.int" ; // NB: Do not use the IP addresses below, they are faked, and only // serve demonstration/documentation purposes! It can be convenient to become // a slave at least for the zone your own domain is in. // // Before starting to set up a master zone, make sure you fully // understand how DNS and BIND work. If and when the master server dies or is unreachable, the slave name server will have the transferred zone information and will be able to serve it.$TTL 3600 ; 1 hour default TTL Failure to do this might render the service attacks.
Since we have received 2 nameservers, we ask each of them whether they give authoritative answer.
If it's authoritative 'aa' flag in the header will be set in the answer received ('aa' is authoritative answer). flags: qr aa rd Since 'aa' is set in the answer, then both the nameservers of provide authoritative answer.
If you’re an experienced Windows system engineer, they may seem a little trivial.
But even the most highly trained and savvy administrator can get in a hurry and make a mistake.
I guess @John thanks for the additonal explanation.